Henan Liwei Industry Co., Ltd.
                                                                                                           
Verified Supplier
38 Years
Since 1988
Menu
Tools & Hardware Pipe Fittings

Hinged Double Sphere Expansion Joint for Pressure Pipelines PN6 - DN15 to DN4000 Sizes with 165-550mm Length

Price Negotiable
Price: Price Negotiable
MOQ: 1 set
Delivery Time: After payment 15-30 working days
Brand: liwei
Product Description
Product Overview

The Hinged Double Sphere Expansion Joint is engineered for pressure pipelines with PN6 rating, providing exceptional vibration absorption and accommodating expansion/contraction in fluid management systems. This industrial-grade flexible rubber joint handles various media including air, water, sewage, acid, and oil applications.

Hinged double sphere rubber expansion joint for industrial pipeline systems Close-up view of double sphere flexible rubber joint construction
Product Structure & Materials
No. Name Material Remarks
1 Outer/Inner Rubber EPDM, NR, NBR, PTFE, BR, CR, BR+CR, FKM, Sylopute Select different materials according to the media
2 Frame Nylon Cord Fabric The density and number of layers determine the pressure
3 Pressurized Ring Steel Wire Strand Prevent pressure bearing deformation from being pulled
4 Flange Stainless Steel, Carbon Steel, Ductile Iron Choose different materials according to your requirements
Detailed structural diagram of double sphere rubber joint components
Technical Specifications
Diameter Length Axis Displacement Radial Displacement Deflection Displacement
DN32 (1¼") 165 mm 30-50 mm 45 mm ±7.5°
DN40 (1½") 165 mm 30-50 mm 45 mm ±7.5°
DN50 (2") 165 mm 30-50 mm 45 mm ±7.5°
DN65 (2½") 175 mm 30-50 mm 45 mm ±7.5°
DN80 (3") 175 mm 30-50 mm 45 mm ±7.5°
DN100 (4") 225 mm 35-50 mm 45 mm ±7.5°
DN125 (5") 225 mm 35-50 mm 45 mm ±7.5°
DN150 (6") 225 mm 35-50 mm 45 mm ±7.5°
DN200 (8") 325 mm 35-60 mm - -
DN250 (10") 325 mm 35-60 mm - -
DN300 (12") 325 mm 35-60 mm - -
DN350 (14") 325 mm 35-60 mm - -
DN400 (16") 400 mm 40-60 mm - -
DN450 (18") 400 mm 65-70 mm 70 mm ±12°
DN500 (20") 400 mm 65-70 mm 70 mm ±12°
DN600 (24") 400 mm 70-75 mm 75 mm ±12°
DN700 (28") 400 mm 70-75 mm 75 mm ±12°
DN800 (32") 450 mm 70-75 mm 75 mm ±12°
DN900 (36") 450 mm 70-75 mm 75 mm ±12°
DN1000 (40") 450 mm 75-80 mm 70 mm ±12°

• Special sizes and lengths available from DN15 to DN4000 with custom specifications

Quality Features
  • Smooth external surface free of burrs, rust, pores, slag inclusions, cracks, and mechanical damage
  • Precision welding with flat seams, no porosity, cracks, or slag inclusions
  • Anti-corrosion treatment with pickling and rust removal processes
  • Flange roundness complies with international standards
  • Free samples available for evaluation and testing
Quality inspection and anti-corrosion treatment of rubber expansion joints
Frequently Asked Questions
Q1: What brand is the Double Sphere Flexible Rubber Joint and where is it made?
A1: The Double Sphere Flexible Rubber Joint is manufactured by Liwei in Henan, China.
Q2: What certifications does the Double Sphere Flexible Rubber Joint from Liwei have?
A2: Liwei Double Sphere Flexible Rubber Joint holds multiple certifications including ISO9001, TUV, WRAS, CO, MTC, PL, IV, ensuring international quality compliance.
Q3: What is the model number range for the Liwei Double Sphere Flexible Rubber Joint?
A3: Available in sizes from DN15 to DN4000 to accommodate diverse piping requirements.
Q4: How can I purchase the Liwei Double Sphere Flexible Rubber Joint and what is the minimum order quantity?
A4: Contact the supplier directly with minimum order quantity of 1 set.
Q5: What's your packing method?
A5: Products are wrapped with plastic film, placed in cartons, and secured in wooden cases for shipping.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Henan Liwei Industry Co., Ltd.
Location 179 Zhongxin Road, Zhengzhou, Henan,China
Contact Person Carey Liu

Request A Quote

Please check your email address.
Your message must be at least 20 characters.